| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanical Behavior Related to Interface Physics IV
|
| Presentation Title |
Atomistic analysis of the effect of thick interfaces on the deformation in metallic nanolayered composites |
| Author(s) |
Caizhi Zhou, Shujing Dong, Youxing Chen |
| On-Site Speaker (Planned) |
Caizhi Zhou |
| Abstract Scope |
Metallic nanolayered composites (MNCs) are a type of composite material made up of alternating layers of two or more different metallic materials with a layer thickness in nanometer scales. Interfaces play a vital role in the plasticity of MNCs. This work provides the atomistic analysis of the plastic deformation in MNCs with thick interfaces. In contrast to conventional sharp two-dimensional (2D) interfaces, thick interfaces extend into the third dimension (named 3D interfaces). Our analysis reveals that the 3D interface structure is crystalline dominant rather than amorphous and dislocations are distributed on multiple slip planes within the 3D interface region. The strength of 3D interface samples is stable and there is no sharp drop in the average flow stress. Furthermore, the effect of layer thickness on the strength of MNCs has been suppressed by the 3D interface structure, which can also inhibit shear band formation. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Modeling and Simulation, Mechanical Properties, |